Vision system and method for observing use of a product by a consumer

ABSTRACT

A vision system and method for use by a consumer. The vision system includes an article (e.g., glasses) that is worn by the consumer and a camera attached to the article. The vision system further includes a microphone attached to the article. In another aspect, the vision system includes an article worn by the consumer and a camera attached to the article. The camera may be manually and/or automatically adjustable relative to said article to modify the view as seen by the camera. The method includes affixing a camera to an article (e.g., glasses) that are worn by the consumer; adjusting the camera relative to the article to modify the view of the activity as seen by the camera; and recording the performance of the activity by the consumer using the camera. In some forms, the method includes affixing a microphone to the article worn by the consumer.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation under 37 C.F.R. 1.53(b) of U.S.application Ser. No. 10/435,413 filed May 9, 2003, which claims thebenefit under 35 U.S.C. 119(e) of U.S. Provisional Application Ser. No.60/465,327 filed Apr. 24, 2003, which applications are incorporatedherein by reference.

BACKGROUND

There are many benefits that can be derived from obtainingconsumer-related information, such as ethnographic information, fromconsumers. Some example uses of consumer-related information includedeveloping new product features and validating new product concepts.Consumer-related information is also valuable in developing new productsand determining potential new markets that address consumer preferences.Other benefits include using the information to improve productergonomics, usability and document consumer routines (among otherapplications).

One difficulty associated with obtaining information from consumers isthat while consumers provide information as to what they know andremember, they are often not aware of some events or they forgot to passalong important information. Researchers typically address thisdifficulty by video recording consumers using products. The videorecordings are studied by researchers to obtain useful data.

A consumer is usually recorded by positioning one or more cameras withinan area and having the consumer utilize the product within that area.One drawback with recording consumers in this manner is that therecordings typically fail to provide a perspective from the consumer'spoint of view. Another potential drawback is that the systems andmethods often fail to capture any sounds (e.g., comments made by theconsumer) which are associated with the consumer using the product.

Another drawback with conventional consumer recording techniques is thatthe consumer typically utilizes the product in a fabricated environmentinstead of an environment where the product is normally used (e.g., ahome). Consumers may use products differently in a fabricatedenvironment versus a natural environment. Therefore, recording aconsumer in an unnatural environment may result in obtaining lessaccurate information.

There is a need for a system and/or a method that obtains informationfrom consumers relating to the use of products in a natural environment.The system and method should be able to audibly and visually document aconsumer's use of a product from the consumer's perspective to obtainvaluable ethnographic information which can be used to develop improvedproducts.

SUMMARY OF THE INVENTION

The present invention relates to a vision system and method. The visionsystem and method document consumer-related information that can be usedto enhance product usability and develop new product features.

In one aspect, the present invention relates to a vision system for useby an individual. The vision system includes an article worn by theindividual and a camera attached to the article. The vision systemfurther includes a microphone attached to the article.

The vision system may further include a display that receives signalsfrom the camera and a speaker that receives signals from the microphone.In some sample forms, the article is a pin that is secured to clothingof the individual, or a headband (or cap) that is worn by theindividual. In other forms, the article is glasses and the camera andmicrophone are clipped onto, or integral with, the glasses.

In another aspect, the present invention relates to a vision system foruse by an individual that includes an article worn by the individual anda camera attached to the article. The camera may be manually and/orautomatically adjustable relative to said article to modify the view asseen by the camera. The system may further include a control that sendssignals to the camera which cause automatic adjustment of the camerarelative to the article.

In still another aspect, the present invention relates to a visionsystem for use by a consumer. The vision system includes glasses worn bythe consumer and a microphone and camera (e.g., a digital camera) thatare attached to the glasses. In some forms, the camera and microphoneare integral with the glasses while in other forms the camera andmicrophone are clipped onto the glasses.

The vision system may further include a recorder that records signals(wired or wireless signals) from the camera and the microphone. Thevision system may also include an apparatus that is worn by the consumerto hold the recorder.

In yet another aspect, the present invention relates to a method ofobserving an activity performed by an individual. The method includesaffixing a camera to an article worn by the individual; affixing amicrophone to the article worn by the individual; and recording theperformance of the activity by the individual using the microphone andthe camera. The method may further include preparing instructions on howto use the article, camera and microphone and/or training the individualon how to use the article, camera and microphone.

In another aspect, the method includes affixing a camera to an articleworn by the individual; adjusting the camera relative to the article tomodify the view of the activity as seen by the camera; and recording theperformance of the activity by the individual using the camera.Adjusting the camera relative to the article may include manually and/orautomatically adjusting the camera relative to the article. In addition,adjusting the camera relative to the article may include sending signals(e.g., wireless signals) from a control to the camera.

In still another aspect, the present invention relates to a method ofobserving use of a product by a consumer. The method includes affixing acamera to an article worn by a consumer; affixing a microphone to thearticle worn by the consumer; and

recording the use of the product by the consumer using the camera in ahome environment, such as the consumer's home.

In another aspect, the method includes affixing a camera to glasses thatare adapted to be worn by the consumer and recording the use of theproduct by the consumer using the camera. The method may further include(i) affixing a microphone to the glasses that are adapted to be worn bythe consumer; (ii) supplying the consumer with the product; and/or (iii)adjusting the camera (manually or automatically) relative to the glassesto modify the view as seen by the camera of the consumer using theproduct.

In some sample forms of the method, recording the use of the product bythe consumer using the microphone and the camera includes obtainingethnographic information relating to use of the product by the consumer.In addition, affixing a camera to glasses that are adapted to by wornthe consumer may include clipping the camera onto the glasses.

In still another aspect, the present invention relates to a method ofobserving consumer shopping. The method includes affixing a camera to anarticle worn by a consumer; affixing a microphone to the article worn bythe consumer; and recording the consumer shopping using the microphoneand the camera.

The method may further include adjusting the camera relative to thearticle to modify the view as seen by the camera. In addition, affixinga camera to an article worn by a consumer may include affixing a camerato glasses worn by the consumer.

The purposes and features of the present invention will be set forth inthe description that follows. Additional features of the invention willbe realized and attained by the product and processes particularlypointed out in the written description and claims hereof, as well asfrom the appended drawings.

It is to be understood that both the foregoing general description andthe following detailed description are exemplary and are intended toprovide further explanation of the invention claimed. The accompanyingdrawings, which are incorporated in and constitute part of thisspecification, are included to illustrate and provide a furtherunderstanding of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be more fully understood, and furtherfeatures will become apparent, when reference is made to the followingdetailed description and the accompanying drawings. The drawings aremerely representative and are not intended to limit the scope of theclaims. Like parts depicted in the drawings are referred to by the samereference numerals.

FIG. 1 illustrates a vision system and method.

FIG. 2 illustrates another vision system and method.

FIG. 3 illustrates an article that may be used in the vision system andmethod shown in FIG. 2.

FIG. 4 illustrates another vision system and method.

FIG. 5 is an enlarged view of FIG. 4 illustrating in greater detail apair of glasses that may be used in the vision system and method shownin FIG. 4.

FIG. 6 is an enlarged view similar to FIG. 5 illustrating another pairof glasses that may be used in the vision system and method shown inFIG. 4.

FIG. 7 illustrates still another example vision system and method.

FIG. 8 illustrates yet another example vision system and method.

FIG. 9 is a perspective view of another pair of glasses that may be usedin the vision system and method where a camera is clipped onto theglasses.

DETAILED DESCRIPTION

In the following detailed description, reference is made to theaccompanying drawings, which show specific embodiments in which theinvention may be practiced. These embodiments are described insufficient detail to enable those skilled in the art to practice theinvention. It is to be understood that other embodiments may be utilizedand structural changes made, such that the following detaileddescription is not to be taken in a limiting sense.

FIG. 1 shows a vision system 10 for use by an individual 100. The visionsystem 10 includes an article 12 worn by the individual 100 and a camera14 attached to the article 12. The vision system 10 further includes amicrophone 16 that is attached to the article 12. In some forms of thevision system 10, the camera 14 and the microphone 16 are integral withthe article 12. The camera 14 and microphone 16 may be any conventionaltype of camera or microphone, including digital cameras and microphones.In addition, the camera 14 and/or microphone 16 may be developed to workwith a particular article.

As shown in FIG. 1, the vision system 10 may further include a display20 that receives signals from the camera 14 and a speaker 22 thatreceives signals from the microphone 16. In the illustrated example formof the vision system 10, the speaker 22 is integral with the display 20.The speaker 22 and/or display 20 may be hardwired to the microphone 16and/or camera 14, or as shown in FIG. 1, adapted to receive wirelesssignals from the microphone 16 and/or camera 14. The display 20 andspeaker 22 may be any conventional type of display or speaker, includingdigital displays and speakers that are customized to work with aparticular article.

The vision system 10 may further include a recorder 26 that recordssignals from the camera 14 and/or the microphone 16. Although therecorder 26 is shown as being hardwired to the article 12, the recordermay receive wireless signals from the microphone 16 and/or camera 14. Insome forms, the vision system 10 may also include an apparatus, such aspack 28, that is worn by the individual 100 and is adapted to secure therecorder 26. Pack 28 may be a “Fanny Pack” type carrier that is wornaround the individual's waist.

It should be noted that any type of apparatus may be used to secure therecorder 26 somewhere on the individual 100. In addition, the recorder26 may be incorporated directly, or indirectly, with the display 20 andthe speaker 22 such that the recorder 26 receives the common signal withthe display 20 and the speaker 22.

Although any conventional type of conventional recorder may be used inthe vision system 10, the recorder 26 may be developed to work with aparticular article, camera, microphone, speaker and/or display. Inaddition, the recorder may record information in any form (e.g., digitalinformation) on any type of medium.

The vision system 10 may further include a power supply (not shown). Insome forms, the power supply may be held within pack 28. When the partsof the vision system 10 are hardwired together, the power supply mayprovide power to one or more components in the vision system 10 throughthe same or separate cabling that sends and receives respective signalsto each part of the vision system 10.

The type of article 12 that is used in the vision system 10 depends onthe application where the vision system 10 is used. Although FIG. 1shows article 12 as a pin that is adapted to be secured to clothing 13which is worn by the individual 100, it should be noted that the article12 may be a headband (see, e.g., FIG. 7), cap (see, e.g., FIG. 8),wristband, belt or glasses (see, e.g., FIGS. 4-6) that are adapted to beworn by the individual 100 (among other items that can be attached to,or worn by, an individual).

FIG. 2 shows another example vision system 40 for use by an individual100. The vision system 40 includes an article 42 that is worn by theindividual 100 and a camera 44 that is attached to the article 12. Asshown most clearly in FIG. 3, the camera 44 is adjustable relative tothe article 42 to modify the view as seen by the camera 44. Camera 44may be of any conventional type, including a digital camera that isdeveloped to work with a particular article. In the illustrated examplevision system 40, camera 44 is integral with the article 42, althoughthe camera 44 and article 42 may also be separate items that are joinedtogether in any manner.

It should be noted that the camera 44 may be manually or automaticallyadjustable relative to the article 42. In addition, the vision system 40may include a control 47 that automatically adjusts the camera 44relative to the article 42. The camera 44 may be hardwired to thecontrol 47, or as shown in FIG. 2, the camera 44 may be adapted toreceive wireless signals from the control 47. The control may be anyconventional type of control, or a customized control that is adapted towork with a particular article and/or camera.

The vision system 40 may further include a locking mechanism (not shown)that secures the camera 44 in more than one position/orientationrelative to the article 42. The locking mechanism may be incorporatedinto one or more of the article 42, camera 44 and control 47.

It should be noted that the vision system 40 may also include one ormore of a display, speaker, recorder and apparatus as described abovewith reference to FIG. 1. In addition, the type of article 42 that isused in the vision system 40 will similarly depend on the applicationwhere the vision system 40 is used.

FIGS. 4-6 show a vision system 70 for use by an individual, such as aconsumer 200. The vision system 70 includes a pair of glasses 72 thatare worn by the consumer 200 and a camera 74 which is attached to theglasses 72. Alternative forms of the vision system 70 are shown in FIG.5 versus FIGS. 4 and 6.

FIG. 5 shows a form of the vision system 70 that further includes amicrophone 76 which is attached to the glasses 72. The microphone 76 maybe in a variety sizes, shapes and forms such that the style ofmicrophone 76 illustrated in FIG. 5 is only for illustrative purposes.

FIGS. 4 and 6 show a form of the vision system 70 that does not includea microphone but the camera 74 is adjustable relative to the glasses 72.The camera 74 may be manually or automatically adjustable relative tothe glasses 72. In addition, the vision system 70 may further include acontrol that automatically adjusts the camera 74 relative to the article72 to change the view as seen by the camera 74 (see, e.g., control 47 inFIG. 2). In other forms, the vision system 70 will include (i) amicrophone 76; and (ii) a camera 74 that is adjustable relative to theglasses 72.

The camera 74 and/or microphone 76 may be integral with the glasses 72,or clipped onto the glasses 72. In addition, the camera 74 and/ormicrophone 76 may be of any conventional type, or the camera and/ormicrophone may be developed to work with a particular style of glasses.The vision system 70 may also include one or more of a display, speaker,locking mechanism, power supply, recorder and apparatus as describedabove with reference to FIGS. 1-3.

It should be noted that glasses 72 may take a variety sizes, shapes andforms such that the style of glasses 72 illustrated in FIGS. 4-6 areonly for illustrative purposes. As an example, the glasses 72 may befabricated to fit an exact head size (adult/child).

A method of observing an activity performed by an individual 100 isdescribed herein with reference to FIGS. 1-6. As used herein, individual100 and consumer 200 are sometimes used interchangeably in the describedmethods depending on the context of the method. The method includesaffixing a camera 14 to an article 12 worn by the individual 100;affixing a microphone 16 to the article 12 worn by the individual 100;and recording the performance of the activity by the individual usingthe microphone 16 and the camera 14 (see, e.g., FIG. 1).

It should be noted recording the performance of the activity by theindividual may include any type of activity. Some example activitiesinclude a consumer using and/or shopping for a product and a laborerperforming work-related operations. Other example activities includeproviding live or recorded feedback to an instructor.

The method may further include (i) preparing instructions on how to usethe article 12, camera 14 and microphone 16; (ii) training theindividual 100 on how to use the article 12, camera 14 and microphone16; (iii) obtaining information from the individual 100 relating torecording the performance of the activity using the article 12; and/or(iv) training other individuals to perform the same activity usinginformation obtained from recording the performance of the activity bythe individual 100.

Preparing instructions on how to use the article 12, camera 14 andmicrophone 16 may include preparing instructions for all aspects ofusing the vision system, including putting the vision system on,starting and ending the recording process, changing video cassettes orother medium, and for calling someone if there is a problem. As anexample, one or more of the components that are used in the system mayinclude stickers which are placed on all elements/buttons/switches ofthe equipment to label the parts of the equipment that a user will haveto interact with.

In some sample forms of the method, affixing the camera 14 and themicrophone 16 to the article 12 worn by the individual 100 and/orrecording the performance of the activity by the individual 100 includesutilizing the instructions on how to use the article 12, camera 14 andmicrophone 16.

Training consumers/users on how to use the article 12, camera 14 andmicrophone 16 may include bringing the consumers/users to a trainingfacility to receive instruction on using the vision system. Theconsumer/user then takes the vision system with them to record at someother location. Once the consumer/user has completed the recording, thevision system is returned to the facility at which point theconsumer/user may be debriefed to provide feedback relating to use ofthe vision system.

Training could also be done in an environment where an individualnormally performs an activity, such as a home. The nature of thetraining will depend on the application but may include demonstrationsof all aspects of using the system.

It should be noted that recording the performance of the activity by theindividual 100 using the microphone and the camera may include adjustingthe camera relative to the article (see, e.g. FIGS. 2 and 3). Inaddition, affixing a camera 14 and a microphone 16 to an article 12 wornby the individual 100 may include affixing the camera 14 and themicrophone 16 to any one of a headband, cap, pin and glasses (see e.g.,FIGS. 4-6) that are adapted to be worn by an individual 100.

The type of article 12 that is used in the method depends on theapplication where the article 12 is used. Although FIG. 1 shows article12 as a pin that is adapted to be secured to clothing 13 worn by theindividual 100, it should be noted that the article 12 may be (amongother items) a headband, cap, wristband, belt or glasses (see, e.g.,FIGS. 4-6) that are adapted to be worn by, or attached to, theindividual 100.

Another example method of observing an activity performed by anindividual is described herein with reference to FIGS. 2-3. The methodincludes affixing a camera 44 to an article 42 that is worn by theindividual 100; adjusting the camera 44 relative to the article 42 tomodify the view of the activity as seen by the camera 44; and recordingthe performance of the activity by the individual 100 using the camera44. It should be noted that adjusting the camera 44 relative to thearticle 42 may include (i) manually adjusting the camera 44 relative tothe article 42; and/or (ii) automatically adjusting the camera 44relative to the article 42 by sending signals from a control 47 to thecamera 44.

A method of observing use of a product P by an individual 100 (FIGS.1-3), such as a consumer 200 (FIGS. 4-6), is described herein withreference to FIGS. 1-6. The method includes affixing a camera 14 and amicrophone 16 to an article 12 that is worn by the individual100/consumer 200. The method further includes recording the use of theproduct P by the consumer 200 using the microphone 16 and the camera 14to obtain ethnographic information relating to use of the product P(see, e.g., FIG. 1). Recording the use of the product P by the consumer200 may include recording the consumer 200 shopping for a product.

Some ethnographic information obtained by this system may be used toperform time, effort and/or motion studies on an individual 100/consumer200.

Researchers can obtain additional information by analyzing a sequence ofoperations (e.g., task analysis) that are nominally associated with anindividual performing an activity, such as using a product. Thisanalysis may be used to enhance a product's usability or to developbrand new products.

Some other forms of ethnographic information that may be acquiredinclude (i) documenting errors or mishaps associated with using aproduct; (ii) keeping a record of how consumers customize a productand/or the environment when the consumer uses the product; and (iii)observing an individual/consumer's behavior as they use the product.

In some forms, obtaining ethnographic information includes performingstudies that examine design changes which have been made based onethnographic information from earlier studies. This type of ethnographicinformation is helpful in validating design changes or new productdesigns.

It should be noted that many different types of analysis may be doneusing the ethnographic information obtained by the system, includingbehavioral, psychological, physiological, and user-to product-toenvironment interaction analysis. Any of these types of analysis may beused to develop improved and/or new products (among other applications).

The method may further include (i) supplying the consumer 200 with theproduct P; and/or (ii) obtaining information from the consumer 200relating to recording the use of the product P using the microphone 16and the camera 14. In addition, recording the use of the product P usingthe microphone 16 and the camera 14 may include recording the consumer200 in an environment where the consumer 200 normally uses the product(e.g. a home).

Another method of observing use of a product P by a consumer 200 isdescribed herein with reference to FIGS. 4-6. The method includesaffixing a camera 74 to glasses 72 that are adapted to by worn theconsumer 200 and recording the use of the product P by the consumer 200using the camera 74 in a home environment, such as the consumer's home.

The method may further include (i) affixing a microphone 76 to theglasses 72 that are adapted to be worn by the consumer 200; (ii)supplying the consumer 200 with the product P; and (iii) manually and/orautomatically adjusting the camera 74 relative to the glasses 72 tomodify the view of the consumer 200 using the product P.

In some forms of the method, recording the use of the product P by theconsumer 200 using the camera 74 includes obtaining ethnographicinformation relating to use of the product P by the consumer 200. Inaddition, affixing the camera 74 to the glasses 72 that are adapted toby worn the consumer 200 may include clipping the camera 74 onto theglasses 72 (see, e.g., camera 74 and glasses 72 in FIG. 9).

In another aspect, a method of observing a consumer shopping isdescribed herein with reference to FIGS. 1-6. The method includesaffixing a camera 14 and a microphone 16 to an article 12 worn by anindividual 100/consumer 200 (see, e.g., FIG. 1). The method furtherincludes recording the consumer shopping using the microphone 16 and thecamera 14.

As shown in FIGS. 2 and 3, the method may further include adjusting acamera 44 relative to the article 42 to modify the view as seen by thecamera 44. In addition, affixing a camera 74 to an article worn by aconsumer 200 may include affixing a camera 74 to glasses 72 worn by theconsumer 200 (see, e.g., FIGS. 4-6).

The method may also include obtaining ethnographic informationassociated with a consumer shopping for a product. As an example, suchethnographic information may be analyzed to (i) obtain time, effortand/or motion studies associated with handling a product duringshopping; (ii) document the portions of a product's packaging theconsumer reads; and (iii) observe a consumer's actions as they relate tochoosing from multiple products. The insights developed can be used toimprove packaging, package graphics and package placement to enhancepackage visibility, consumer appeal and purchase interest (among otherapplications).

The vision systems and methods described herein allow researchers tovideo record individuals engaged in activities, such as consumers usingproducts, within the correct environmental context. Future developmentsin technology are foreseen in which all components continue to getsmaller creating more opportunities to conceal them in glasses or otherwearable elements such as hats, ties, buttons, pens, etc. In addition,researchers may be able to communicate with consumers/individuals inorder to make adjustments to the method while the consumer/individual isin the process of performing the method.

The operations discussed above with respect to the described methods maybe performed in a different order from those described herein. It shouldbe noted that individual and consumer are sometime used interchangeably.In addition, FIGS. 1-6 are representational and are not necessarilydrawn to scale. Certain proportions thereof may be exaggerated, whileothers may be minimized.

While the invention has been described in detail with respect to thespecific aspects thereof, it will be appreciated that those skilled inthe art, upon attaining an understanding of the foregoing, may readilyconceive of alterations to, variations of, and equivalents to theseaspects which fall within the spirit and scope of the present invention,which should be assessed accordingly to that of the appended claims.

1. A method of observing a consumer shopping, the method comprising:affixing a camera to an article worn by a consumer; affixing amicrophone to the article worn by the consumer; and recording theconsumer shopping using the microphone and the camera.
 2. The method ofclaim 1 further comprising adjusting the camera relative to the articleto modify the view as seen by the camera.
 3. The vision system of claim1 wherein affixing a camera to an article worn by a consumer includesaffixing a camera to glasses worn by a consumer.
 4. A method ofobserving use of a product by a consumer, the method comprising:affixing a camera to glasses that are adapted to by worn the consumer;and recording use of the product by the consumer using the camera in ahome environment.
 5. The method of claim 4 further comprising affixing amicrophone to the glasses that are adapted to be worn by the consumer.6. The method of claim 4 further comprising supplying the consumer withthe product.
 7. The method of claim 4 wherein recording use of theproduct by the consumer using the camera includes obtaining ethnographicinformation relating to use of the product by the consumer.
 8. Themethod of claim 4 wherein affixing a camera to glasses that are adaptedto by worn the consumer includes clipping the camera onto the glasses.9. The method of claim 4 further comprising adjusting the camerarelative to the glasses to modify the view of the consumer using theproduct.
 10. The method of claim 9 wherein adjusting the camera relativeto the glasses includes automatically adjusting the camera relative tothe glasses by sending signals from a control to the camera.
 11. Themethod of claim 4 wherein recording use of the product by the consumerusing the camera in a home environment includes recording use of theproduct by the consumer in the consumer's home.
 12. A method ofobserving use of a product by a consumer, the method comprising:affixing a camera to an article worn by a consumer; affixing amicrophone to the article worn by the consumer; and recording use of theproduct by the consumer using the microphone and the camera to obtainethnographic information relating to use of the product.
 13. The methodof claim 12 further comprising supplying the consumer with the product.14. The method of claim 12 wherein recording use of the product by theconsumer using the microphone and the camera includes recording theconsumer in an environment where the consumer normally uses the product.15. The method of claim 12 wherein recording use of the product by theconsumer using the microphone and the camera includes recording theconsumer shopping for the product.
 16. A vision system for use by aconsumer, the vision system comprising: glasses worn by the consumer; acamera attached to the glasses; a microphone attached to the glasses;and a recorder that records signals from said camera and saidmicrophone, the signals providing ethnographic information relating tothe consumer using a product.
 17. The vision system of claim 16 furthercomprising an apparatus worn by the consumer, said recorder beingattached to said apparatus.
 18. The vision system of claim 16 whereinsaid camera and said microphone are integral with said glasses.
 19. Thevision system of claim 16 further comprising a display that receivessignals from said camera and a speaker that receives signals from saidmicrophone.
 20. The vision system of claim 16 wherein said recorderreceives wireless signals from said microphone and said camera.
 21. Thevision system of claim 16 wherein said camera is adjustable relative tosaid article.
 22. The vision system of claim 21 wherein said camera ismanually adjustable relative to said article.
 23. The vision system ofclaim 21 wherein said camera is automatically adjustable relative tosaid article.
 24. The vision system of claim 21 further comprising acontrol that automatically adjusts said camera relative to said article.25. The vision system of claim 24 wherein said control sends wirelesssignals to said camera.
 26. The vision system of claim 21 wherein atleast one of said camera and said glasses includes a locking mechanismthat secures said camera in more than one position relative to saidglasses.